function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 31],
    ['Acta Zoologica Academiae Scientiarum Hungaricae', 24],
    ['Ballière', 148],
    ['Biodiversity Data Journal', 1243],
    ['European Journal of Taxonomy', 36],
    ['Far Eastern Entomologist', 129],
    ['Journal of Hymenoptera Research', 89],
    ['Journal of Natural History', 107],
    ['Linzer biologische Beiträge', 39],
    ['Raffles Bulletin of Zoology', 11],
    ['The Entomological Magazine', 75],
    ['Transactions of the Entomological Society of London', 14],
    ['ZooKeys', 51],
    ['Zoological Systematics', 28],
    ['Zootaxa', 398],
    ['Other (47)', 114]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=2537)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);